Carbureter.



F. BAVEREY.

GARBURETER.

APPLICATION FILED FEB. 7. 1914.

1,251,623. Patented Ja11.1,1918.

2 SHEETS-SHEET l.

FIG 5 Arr v F. BAVEREY.

CARBURETER,

APPLICATION FILED FEB. r, m4.

Patented Jan. 1, 1918.

2 SHEETS-SHEET 2.

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UNITED STAT ii 1 E.

FRANQOIS BAVEREY, OF OULLINS, FRANCE, ASSIGNOR T0 SOCIE'IE DUCARBURATEUR ZENITH, 0F LYON, FRANCE, A CORPORATION OF FRANCE.

CARBUEETEB.

Specification of Letters Patent.

Patented Jan. 1, 1918.

Application filed February 7, 1914. Serial No. 817,277.

To all whom it may concern:

-Be it known that I, FRANgOrs BAvnRnY, a citizen of the French Republic,residing at Oullins, in France, have invented certain new and usefulImprovements 'in Carbureters for Explosion-Motors, of which thefollowing is a specification.

This invention relates to improvements in carbureters for explosionmotors.

The invention provides means for opening in correlation a passage forfresh air and the nozzles of one or more carburetors having theirorifices in this air passage and supplying an emulsion rich in fuel andautomatically proportioned.

The devices adopted are arranged in such a manner that the orifices ofthe nozzles which feed the emulsion are located in the most throttledportion of the air passage so as to obtain the best atomization.

Each carbureter supplying the emulsion rich in fuel comprises a nozzleor a series of nozzles which in accordance with the suction,automatically supply the quantity of fuel necessary for insuring a goodmixture.

For example, each carbureter comprises anordinary nozzle and a constantsupply nozzle, that is to say, a nozzle delivering at the bottom of awell open'to the atmosphere.

It is also possible to proportionate the supply of emulsion to thesupply of air for all positions of the member for throttling the gasesby giving the air passage and the orifices for the passage of theemulsion crosssections of appropriate form.

A carburetor thusarranged will therefore supply suitable mixture for allapertures of the carbureter and all speeds of the engine.

The annexed drawings illustrate the invention.

Figures 1 and 2 illustrate two forms of construction of the apparatuswhich are shown diagrammatically.

Fig. 3 is a vertical section of a practica embodiment of thediagrammatic arrangement shown in Fig. 1.

Fig. 4: is a plan view of Fig. 3.

Fig. 5 is a section on line AA of Fig. 3.

Fi 6 is a detail sectional view showing certain of the parts.

In Fig. 1 of the drawings the reference character a designates anemulsion tube which extends into a rectangular member I) through whichthe air passes to the engine. The outlet of tube a is in the form of anarrow slot 6, whose length is equal to one of forth to increase ordecrease the supply of air, and simultaneously increase and decrease thesize of the opening@ through which theemulsion passes.

In Fig. 2 I have shown a similar device with a plurality of emulsiontubes a a and a which are provided with narrow outlets e, e and 6respectively, which open into the air passage leading to the engine.Emulsion may be fed to these various tubes in any desired manner, butthe arrangement is such that the area of the emulsion inlet will besimultaneously increased or decreased as the area of the air inlet isincreased. or decreased.

In Figs. 3 to 5 I have shown one form of device, and in which 79designates a casing having an air passage 6 therethrough whichcommunicates with the intake of the engine. Extending into this casingfrom one end is an emulsion or a rich mixture tube t having a pluralityof slots f through the wall thereof, and which slots extendapproximately across the full width of the opening 6. This tube 2, isinserted through a cylindrical opening in one side wall of the casing 12This tube t is preferably made in two parts, the outer portion being inthe form of a Venturi or choke tube, and is inserted through the sameopening through which the other portion of the tube 6 is inserted. Theend of this opening is inclosed by means of a hollow cap 9 havmgopenings through the side wall thereof which are provided with a screen9 and through which air is admitted to the Ve'nturi tube and the tube t.j is a jet of ordinary type and is fed from the constant level chamberin the ordinary manner, the tip z of said jet is calibrated toaccurately measure the fuel. This jet is inserted in passage Z whichopens into tube t, this passage Z receiving gasolene from well 0, opento the atmosphere in the well known manner. The well 0 is fed throughthe opening it and communicates with passage Z by means of chamber is.

Slidably mounted across the air passage 12 in the casing p is a throttlevalve 39 which is in the form of a piston, and which telescopicallyengages the tube 25, the arrangement being such that when the valve 10is moved in one direction it will reduce the size of the air openingthrough the casing and simultaneously reduce the size of the openings 7leading from the emulsion tube t, and when moved in the oppositedirection it will simultaneously increase the area of the air inlet andthe openings from the emulsion tube. This throttle valve p is providedwith a valve stem p which extends through a head connected to the casingp In order to feed a mixture to the air channel for slow speed running,I have provided What I claim as my invention and desire to secure byLetters Patent of the United States is 1. In a carbureter, thecombination of an air intake arranged to supply a fuel mixture to theengine, a jet having an emulsion passage leadlng therefrom into the airintake, said jet opening below the level of the liquid in the constantlevel reservoir into a well communicating with theatmosphere, and athrottle arranged to simultaneously vary the area of the air intake andthe area of the opening from the emulsion passage into said intake.

2. In a carbureter, the combination of an air intake arranged to supplya fuel mixture to the engine, a jet having an emulsion passage leadingtherefrom into the air intake, said jet opening below the level of theliquid in the constant level reservoir into a well communicating withthe atmosphere, and a single throttle member arranged to simultaneouslyvary the area of the air intake and the area of the opening from theemulsion passage into said intake.

3. In a carbureter, the combination of a emulsion passage to the saidintake, sub- 7 stantially as described.

4. In a carbureter, an air conduit, a fuel conduit dischargingthereinto, said fuel conduit being provided with two sources of fuelsupply, one providing a supply variable per unit of time, and oneconstant per unit of time, and a throttle arranged to simultaneouslyvary the area of the air conduit and the area of the opening from thefuel conduit thereinto.

5. In a carbureter, an air conduit a fuel conduit subject to theinfluence of air passing through the air conduit, the fuel conduit beingprovided with a suction-controlled fuel feed, and another fuel feedgiving a fuel supply increasing at a less rate than the air supply, anda throttle arranged to simultaneously vary the area of the air conduitand the area of the opening from the fuel conduit thereinto.

6. In a carbureter, the combination of an air intake arranged to supplya fuel mixture to the engine, an emulsion passage leading into the airintake, an air inlet for the emulsion passage, a suction-com trolledfuel feed supply, and a fuel feed giving a fuel supply increasing at aless rate than the air supply, both said fuel feeds entering theemulsion passage, and a throttle arranged to simultaneously vary thearea of the air intake and the area of the opening from the emulsionpassage.

7. A carbureter, comprising a casing, an air intake extending throughsaid casing, an emulsion tube extending into said air intake and havingan elongated opening therethrough, means for feeding both air and oil tosaid tube, a reciprocating throttle valve mounted within said casing andarranged to slide across the air intake opening and the opening from theemulsion tube, to simultaneously increase or decrease the feed of airand emulsion.

8. A carbureter, comprising a casing having an air passage therethrough,an emulsion tube extending through the wall of said easing into the airpassage, means for feeding air to said emulsion tube, means for feedingoil to said emulsion tube, said emulsion tube having an elongated slotmenses through its walls, a piston 'valve mounted within the casing andsurrounding the emulsion tube, said piston valve being arranged tosimultaneously close the slot from the emulsion tube and the airpassage, and a piston rod connected to said piston.

In witness whereof I have signed this speclfication in the presence oftwo witnesses.

FRANQOIS BAVEREY. Witnesses GASTON JmUNIAUo, MARIUS HERMAZ.

